Climate & Weather

Climate & Weather in Ireland

Ireland's climate is famously changeable. The Gulf Stream keeps temperatures mild, but moisture from the Atlantic brings frequent rain.

Climate Overview

Type: Temperate maritime

Characteristics:

• Mild winters (rarely below freezing)
• Cool summers (rarely above 25°C)
• Frequent rain throughout the year
• High humidity
• Overcast skies common
• "Soft" weather (light drizzle)

Seasonal Breakdown

Rainfall

Annual rainfall: 750-1,000mm in east (Dublin), 1,500-2,000mm in west

Rainy days: 150-200+ days per year

Pattern:

• Wettest: October-January
• Driest: April-June (relatively)
• Rain often light and passing rather than heavy storms

"Soft day": Irish expression for light drizzle that's not worth mentioning

Regional Variations

East Coast (Dublin):

• Driest part of Ireland
• More continental feel
• Coldest winters

West Coast (Galway, Kerry):

• Wettest but mildest
• Gulf Stream influence
• Dramatic weather

Midlands:

• More inland climate
• Can be colder in winter
• Fog common

South (Cork):

• Mildest overall
• Slightly warmer summers
• Good agricultural land

What to Expect

Four seasons in one day: Real phenomenon. Morning sun, afternoon rain, evening clearing is normal.

Mild extremes:

• Heatwaves are rare (25°C+ is news)
• Snow is rare and doesn't stick
• Flooding more common than snow

Wind: Ireland can be windy, especially on coasts.

Daylight variation:

• Summer: Sunrise 5am, sunset 10pm
• Winter: Sunrise 8:30am, sunset 4:30pm

Adapting to Irish Weather

Essential gear:

• Waterproof jacket (always)
• Layers (temperature fluctuates)
• Umbrella (compact, wind-resistant)
• Waterproof shoes/boots

Mindset adjustments:

• Don't let rain stop you - Irish people carry on
• Outdoor activities happen regardless
• "No such thing as bad weather, only wrong clothes"
• Appreciate sunny days - they're precious

Health Considerations

Vitamin D: Limited winter sunshine means many Irish people (and expats) are deficient. Supplements recommended October-March.

Seasonal Affective Disorder (SAD): Short winter days can affect mood. Light therapy lamps help.

Allergies: Grass pollen season May-July can be intense.

Best Weather Periods

• May-June: Often best combination of warmth and dry spells
• September: Often surprisingly warm and settled
• July-August: Peak summer but not guaranteed

Climate Change Impact

• Wetter winters predicted
• More intense rainfall events
• Sea level rise affecting coastal areas
• Overall still mild compared to rest of Europe